The history of Curioni Sun Teramo is the story of a challenge that began in 1991, the year that Officine Curioni S.p.A. de Lodi, a major manufacturer of machines for the transformation of corrugated cardboard, decides to enter a new market and found a new company whose first objective was to design and build a revolutionary machine for the production of rectangular-bottom paper bags with handles. Thus was born Curioni Sun Teramo and the first Sun Master 540 bag machine. Thanks to its totally revolutionary conception, high technological level, ergonomics and ease of use, this machine was an immediate success.